https://vital.lib.tsu.ru/vital/access/manager/Index en-us 5 The 5-(isopropylidene)-2-thiobarbituric acid: Preparation, crystal structure, thermal stability and IR-characterization https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000492742 Mon 17 Dec 2018 09:56:05 KRAT ]]> Synthesis and thermal transformation of a neodymium(III) complex [Nd(HTBA)2(C2H3O2)(H2O)2]2H2O to non-centrosymmetric oxosulfate Nd2O2SO4 https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000532097 750 °C is Nd2O2SO4 (2). The crystal structure of 2 has been obtained in space group I222, a = 4.1199(4), b = 4.2233(4), c = 13.3490(12) Å, Z = 2, and R = 0.0246. The structure is related to an orthorhombic structure type of M2O2SO4 (M = Ln) compounds. In 2, the Nd3+ is coordinated by six oxygens in a trigonal prism. Each NdO6 prism links with two SO4 tetrahedra by nodes, with four other NdO6 prisms by edges, and with four other NdO6 prisms by nodes, and the units form the 3-D frame. In the frame, the layers of SO4 tetrahedra are alternated by two NdO6 prism layers.]]> Mon 10 Dec 2018 12:59:44 KRAT ]]> Optical methods in diagnostics of liver fibrosis via blood observation https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000636381 Fri 23 Nov 2018 10:39:01 KRAT ]]>